THE R ANGES
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— 100% rated circuit-breakers
All Tmax XT circuit-breakers are available both as standard version and as 100% rated version. Be- cause of the additional heat generated bringing
100% of continuous current rating, the use of spe- cific 90°C rated wires sized per 75°C ampacity may be required.
Fixed circuit-breakers XT1
Suitable for continuous operation at 100-percent of rating up to 100A with 90°C wire. The wire size shall be based on the ampacity of 75°C rated wire.
XT2
Suitable for continuous operation at 100-percent of rating up to 100A with thermal magnetic trip unit and up to 125A with electronic trip unit.
XT3
Suitable for continuous operation at 100-percent of rating up to 225A with 90°C wire. The wire size shall be based on the ampacity of 75°C rated wire.
XT4
Suitable for continuous operation at 100-percent of rating up to 250A, with 90°C wire. The wire size shall be based on the ampacity of 75°C rated wire. With 75°C wire suitable for continuous operation at 100-percent of rating up to 200A with lugs FC CuAl only. Suitable for continuous operation at 100-percent of rating up to 400A. For XT5 V-X 90°C wire needed, the wire size shall be based on the ampacity of 75°C rated wire. N-S-H-L versions suitable for continuous operation at 100-percent of rating up to 600A with 90°C wire. The wire size shall be based on the ampacity of 75°C rated wire. Suitable for continuous operation at 100-percent of rating up to 800A with electronic trip units and 90°C wire. The wire size shall be based on the ampacity of 75°C rated wire.
XT5 400
XT5 600
XT6
XT7
Suitable for continuous operation at 100-percent of rating up to 1200A with 90°C wire. The wire size shall be based on the ampacity of 75°C rated wire.
For 80% - 100% rated enclosure dimensions and fur- ther installation details, please refer to the docu- ment "Technical characteristics SACE Tmax XT UL/ CSA" (1SDC 210199D0202)
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